EP0187983A1 - Circuit filtrant comprenant des parafoudres à Zn0 - Google Patents

Circuit filtrant comprenant des parafoudres à Zn0 Download PDF

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Publication number
EP0187983A1
EP0187983A1 EP85116242A EP85116242A EP0187983A1 EP 0187983 A1 EP0187983 A1 EP 0187983A1 EP 85116242 A EP85116242 A EP 85116242A EP 85116242 A EP85116242 A EP 85116242A EP 0187983 A1 EP0187983 A1 EP 0187983A1
Authority
EP
European Patent Office
Prior art keywords
conductor
zno
use according
filter
filter circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85116242A
Other languages
German (de)
English (en)
Other versions
EP0187983B1 (fr
Inventor
Niyazi Dr. Ari
Diethard Dr. Hansen
Hendrik Hoitink
Hans Dr. Schär
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to AT85116242T priority Critical patent/ATE48343T1/de
Publication of EP0187983A1 publication Critical patent/EP0187983A1/fr
Application granted granted Critical
Publication of EP0187983B1 publication Critical patent/EP0187983B1/fr
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions

Definitions

  • the invention relates to a novel use of Zn0 surge arresters.
  • ZnO surge arresters which are also referred to as ZnO varistors, are usually used as voltage-limiting elements in electrical circuits.
  • a filter circuit labeled FN 35 2Z-10/03 is shown for an electrical AC network consisting of a phase conductor, a neutral conductor and a protective conductor.
  • the ZnO surge arresters are connected in parallel with so-called X capacitors with capacities in the uF range (here 0.22 uF) between the phase conductor and the neutral conductor. They are used to limit overvoltages that occur due to a push-pull disturbance between phase conductor and neutral conductor.
  • the known circuit offers no protection, since no surge arresters are provided between these conductors. Such additional overvoltage protection is necessary with regard to NEMP or EMC applications * .
  • so-called Y capacitors are only available for transient filtering. For reasons of protection against accidental contact (cf. VDE standard 700 or 875), they only have capacities in the nF range (here 15 nF) compared to the X capacitors.
  • the invention solves the problem of ensuring additional overvoltage protection in electrical circuits which contain capacitances up to approximately 100 nF without additional effort.
  • the invention makes use of the knowledge that ZnO surge arresters behave essentially like capacitors at voltages below their response voltage at which they become conductive.
  • the "ZnO capacitors" have capacities of typically 1 nF. 100 nF can be assumed as the upper capacity limit that can still be sensibly implemented.
  • the filter circuit according to FIG. 1 represents a noise filter with overvoltage protection for an electrical AC network consisting of a phase conductor P, a neutral conductor N and a protective conductor E.
  • the filter circuit has a mains-side connection terminal 1 and a consumer-side connection terminal 2 for the phase conductor P, a network-side connection terminal 3 and a consumer-side connection terminal 4 for the neutral conductor N and a network-side connection terminal 5 and a consumer-side connection terminal 6 for the protective conductor E.
  • Chokes L1, L2 and L3 are connected in series between the connection terminals 1 and 2 of the phase conductor P and correspondingly chokes L4, L5 and L6 between the connection terminals 3 and 4 of the neutral conductor N.
  • the chokes L1 and L4, L2 and L5 or L3 and L6 are current-compensated chokes, i.e. they are wound around a common ferromagnetic core.
  • the X capacitor C1 is connected to the phase conductor P between the chokes L1 and L2 and to the neutral conductor between the chokes L4 and L5.
  • the X capacitor C2 is connected to the phase conductor P between the chokes L2 and L3 and to the neutral conductor N between the chokes L5 and L6.
  • Y capacitors C3 to C6 are provided between phase conductor P and protective conductor E and between neutral conductor N and protective conductor E.
  • the Y capacitors C3 and C4 like the X capacitor C1, are on the phase conductor P between the chokes L1 and L2 and the Y capacitors C5 and C6, like the X capacitor C2, on the phase conductor P between the chokes L2 and L3 connected.
  • the individual components can be dimensioned as follows to achieve a good broadband filter effect:
  • ZnO surge arresters from the BOV series according to publication No. D HS 102480 DEF, issue 3/80 of BBC AG Brown, Boveri & Cie., D-6800 Mannheim, in particular type no. BOV-250 S20K can be used. These have a capacitance of approx. 1 nF below their response voltage.
  • the ZnO overvoltage conductors V4 to V6 are in the filter voltage described. Below their response voltage, these act as further Y capacitors in addition to the Y capacitors C3 to C6.
  • the ZnO surge arrester V3 together with the Y capacitor C4 and the choke L1 in the phase conductor P, forms a so-called ⁇ element with a low-pass effect.
  • the ZnO surge arresters V3 to V6 can therefore be referred to as multifunction elements.
  • the ZnO surge arresters V1 and V2 are not used as multifunction elements in the sense of the invention, since with their capacitance lying only in the nF range they cannot replace the X capacitors C1 and C2 with capacitances in the uF range and, besides them, they also do not have any amount weight.
  • the function of the ZnO surge arrester VI and V2 is therefore limited in the circuit described, as well as in the previously recognized circuit known from the Schaffner catalog Circuit, on their arrester effect for overvoltages between the phase conductor P and the neutral conductor N.
  • X capacitors with capacities up to about 100 nF are sufficient for certain applications, these can of course be replaced by ZnO surge arresters.
  • the Y capacitors C3 to C6 could also be replaced by ZnO surge arresters.
  • the reason why this did not happen in the example is that it is sufficient for sufficient overvoltage protection to replace the Y capacitors arranged next to the connection terminals with ZnO surge arresters.
  • filter circuits with overvoltage protection can be constructed in a simple manner using commercially available high-frequency filters without overvoltage protection.
  • the component group framed in FIG. 1 and designated I with the elements L2, L3, L5, L6, C2, C5 and C6 is a commercial high-frequency filter from Schaffner Elektronik AG, CH-4708 Luterbach, built into a closed housing , which improves the filtering effect by means of component groups II (elements L1, L4, C3, C4, Vl, V3, V5) and III (elements V2, V4, V6) and adds overvoltage protection.
  • overvoltage arresters are provided both in front of and on the consumer side behind the high-frequency filter (component I) is due to the fact that overvoltages caused on the network side and on the consumer side are limited and in particular to keep them away from the high-frequency filter.
  • FIG. 2 shows an exemplary embodiment of how the invention can be optimally used in terms of space and construction in a filter circuit again provided for an AC voltage network comprising phase conductor P, neutral conductor N and protective conductor E.
  • Cylindrical block 7 made of ZnO material in which chokes L7, L8, especially iron chokes wound around a common core, are embedded without contact.
  • the chokes L7 and L8 are not shown in FIG. 2 with their actual geometric shape but with their electrical circuit symbols.
  • the connections of the chokes L7, L8 are led out of the ZnO block 7 to terminals 8, 9 for the phase conductor P or terminals 10, 11 for the neutral conductor N.
  • the ZnO block 7 is provided on the outside with a conductive layer 12, which is connected to terminals 13 and 14 for the protective conductor E.
  • the chokes L7 and L8 for voltages between the individual conductors P, N and E below the response voltage of the ZnO material are isolated from each other and from the conductive layer 12 and therefore also have a certain distributed X capacitance and distributed Y capacitance with respect to the conductive layer 12.
  • the size of these capacities depends on the specifically chosen geometric dimensions of the whole arrangement. If the voltage between a pair of the three conductors P, N and E exceeds the response voltage of the Zn0 material, a cross-current flows over the ZnO material, which limits the voltage at the response voltage level.
  • the filter circuits of Fig. 1 or Fig. 2 can advantageously be installed in fixed housings, which at for example, are designed as an adapter plug or socket attachment and can therefore be easily connected to the power cord of an electrical device to be protected.
  • the arrangement according to FIG. 2 can also be designed as a housing leadthrough for the mains lead of an electrical device.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Ceramic Capacitors (AREA)
  • Thermistors And Varistors (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Filters And Equalizers (AREA)
EP85116242A 1985-01-15 1985-12-19 Circuit filtrant comprenant des parafoudres à Zn0 Expired EP0187983B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85116242T ATE48343T1 (de) 1985-01-15 1985-12-19 Filterschaltung mit zno-ueberspannungsableitern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH176/85 1985-01-15
CH17685 1985-01-15

Publications (2)

Publication Number Publication Date
EP0187983A1 true EP0187983A1 (fr) 1986-07-23
EP0187983B1 EP0187983B1 (fr) 1989-11-29

Family

ID=4180995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116242A Expired EP0187983B1 (fr) 1985-01-15 1985-12-19 Circuit filtrant comprenant des parafoudres à Zn0

Country Status (6)

Country Link
US (1) US4760485A (fr)
EP (1) EP0187983B1 (fr)
JP (1) JPS61169012A (fr)
AT (1) ATE48343T1 (fr)
CA (1) CA1271517A (fr)
DE (1) DE3574533D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2747098A1 (fr) * 2012-12-19 2014-06-25 ABB Research Ltd. Agencement de transformateur pour atténuer les oscillations de tension transitoire

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AU7809087A (en) * 1986-08-27 1988-03-24 Kitchens, W.B. A.c.-d.c. spike eliminating bandpass filter
NL8701238A (nl) * 1987-05-22 1988-12-16 Smit Transformatoren Bv Frequentieafhankelijke overspanningsbeveiliging voor hoogspanningsinrichtingen.
US5136455A (en) * 1990-03-16 1992-08-04 Esp Electronic Systems Protection, Inc. Electromagnetic interference suppression device
US5105327A (en) * 1990-05-10 1992-04-14 Uses, Inc. Ac power conditioning circuit
US5365395A (en) * 1992-11-02 1994-11-15 Panamax, Inc. Fuse block protector
US5625521A (en) * 1994-07-22 1997-04-29 Pacusma Co.,Ltd. Surge protection circuitry
US5652820A (en) * 1995-11-13 1997-07-29 Act Communications, Inc. Fiber optic splice closure and protection apparatus
US5761021A (en) * 1996-08-16 1998-06-02 Yu; Jeff Voltage surge suppression device
US6018448A (en) 1997-04-08 2000-01-25 X2Y Attenuators, L.L.C. Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package
US6650525B2 (en) * 1997-04-08 2003-11-18 X2Y Attenuators, Llc Component carrier
US7274549B2 (en) * 2000-12-15 2007-09-25 X2Y Attenuators, Llc Energy pathway arrangements for energy conditioning
US9054094B2 (en) 1997-04-08 2015-06-09 X2Y Attenuators, Llc Energy conditioning circuit arrangement for integrated circuit
US7321485B2 (en) 1997-04-08 2008-01-22 X2Y Attenuators, Llc Arrangement for energy conditioning
US6894884B2 (en) * 1997-04-08 2005-05-17 Xzy Attenuators, Llc Offset pathway arrangements for energy conditioning
US7106570B2 (en) * 1997-04-08 2006-09-12 Xzy Altenuators, Llc Pathway arrangement
US7301748B2 (en) 1997-04-08 2007-11-27 Anthony Anthony A Universal energy conditioning interposer with circuit architecture
US6603646B2 (en) 1997-04-08 2003-08-05 X2Y Attenuators, Llc Multi-functional energy conditioner
US7336468B2 (en) 1997-04-08 2008-02-26 X2Y Attenuators, Llc Arrangement for energy conditioning
WO1999052210A1 (fr) * 1998-04-07 1999-10-14 X2Y Attenuators, L.L.C. Support de composants
US6606011B2 (en) * 1998-04-07 2003-08-12 X2Y Attenuators, Llc Energy conditioning circuit assembly
US7042703B2 (en) * 2000-03-22 2006-05-09 X2Y Attenuators, Llc Energy conditioning structure
US7110235B2 (en) * 1997-04-08 2006-09-19 Xzy Altenuators, Llc Arrangement for energy conditioning
US7336467B2 (en) * 2000-10-17 2008-02-26 X2Y Attenuators, Llc Energy pathway arrangement
US6954346B2 (en) 1997-04-08 2005-10-11 Xzy Attenuators, Llc Filter assembly
US20030161086A1 (en) 2000-07-18 2003-08-28 X2Y Attenuators, Llc Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package
US7110227B2 (en) * 1997-04-08 2006-09-19 X2Y Attenuators, Llc Universial energy conditioning interposer with circuit architecture
US5854730A (en) * 1997-09-15 1998-12-29 Mitchell; Dennis Transient and voltage surge protection system and method for preventing damage to electrical equipment
US7427816B2 (en) 1998-04-07 2008-09-23 X2Y Attenuators, Llc Component carrier
US6157528A (en) * 1999-01-28 2000-12-05 X2Y Attenuators, L.L.C. Polymer fuse and filter apparatus
ATE312428T1 (de) * 1999-07-16 2005-12-15 Schaffner Emv Ag Netzfilter
US7113383B2 (en) * 2000-04-28 2006-09-26 X2Y Attenuators, Llc Predetermined symmetrically balanced amalgam with complementary paired portions comprising shielding electrodes and shielded electrodes and other predetermined element portions for symmetrically balanced and complementary energy portion conditioning
US6453106B1 (en) 2000-06-30 2002-09-17 Ge-Act Communications, Inc. Method and apparatus for a cable location and protection system
EP1312148A4 (fr) * 2000-08-15 2009-06-03 X2Y Attenuators Llc Systeme d'electrodes pour conditionnement d'energie en circuit
DE10044869A1 (de) * 2000-09-12 2002-04-04 Daimlerchrysler Rail Systems Filterschaltungsanordnung für eine Stromrichterschaltung
KR100536511B1 (ko) 2000-10-17 2005-12-14 엑스2와이 어테뉴에이터스, 엘.엘.씨 공통 기준 노드를 갖는 단일 또는 다수의 회로들을 위한 차폐 아말감 및 차폐된 에너지 경로들 및 다른 엘리먼트들
US7193831B2 (en) 2000-10-17 2007-03-20 X2Y Attenuators, Llc Energy pathway arrangement
US7180718B2 (en) 2003-01-31 2007-02-20 X2Y Attenuators, Llc Shielded energy conditioner
WO2005002018A2 (fr) 2003-05-29 2005-01-06 X2Y Attenuators, Llc Connecteur se rapportant a des structures comprenant un conditionneur d'energie
KR20060120683A (ko) 2003-12-22 2006-11-27 엑스2와이 어테뉴에이터스, 엘.엘.씨 내부적으로 차폐된 에너지 컨디셔너
US6932624B1 (en) * 2004-02-05 2005-08-23 Panamax Modular signal and power connection device
US7592719B2 (en) * 2004-02-25 2009-09-22 Panamax Protection of A/V components
US7271991B2 (en) * 2004-02-25 2007-09-18 Panamax Protection circuit for signal and power
US7245470B2 (en) * 2004-05-19 2007-07-17 Panamax Unsafe voltage shutoff control
WO2006093831A2 (fr) 2005-03-01 2006-09-08 X2Y Attenuators, Llc Conditionneur d'energie avec electrodes traversantes reliees
JP2008537843A (ja) 2005-03-01 2008-09-25 エックストゥーワイ アテニュエイターズ，エルエルシー 内部で重なり合った調整器
WO2006099297A2 (fr) 2005-03-14 2006-09-21 X2Y Attenuators, Llc Conditionneur a conducteurs coplanaires
EP1991996A1 (fr) 2006-03-07 2008-11-19 X2Y Attenuators, L.L.C. Structures de conditionneur d'énergie
TWI445241B (zh) * 2008-03-21 2014-07-11 Univ Chang Gung Electromagnetic pulse protection circuit with filtering function
US8854786B2 (en) * 2009-10-09 2014-10-07 Schneider Electric It Corporation System and method for providing surge protection
US8791782B2 (en) 2011-01-28 2014-07-29 Uses, Inc. AC power conditioning circuit
US8866575B2 (en) 2011-01-28 2014-10-21 Uses, Inc. AC power conditioning circuit
EP2573885B1 (fr) * 2011-09-23 2016-08-10 Epcos AG Coupe-circuit de surtension rempli de gaz empilé
EP3747100B1 (fr) * 2018-01-30 2022-03-16 Hitachi Energy Switzerland AG Dimensionnement de parasurtenseur dans un système de transmission de courant continu
US11165250B2 (en) * 2019-06-07 2021-11-02 Innovative Energy Solutions & Services, Inc. Electrical energy saving system

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US3824431A (en) * 1973-05-10 1974-07-16 Allen Bradley Co High voltage suppressor for transmission lines
US4021759A (en) * 1976-01-19 1977-05-03 The United States Of America As Represented By The Secretary Of The Army EMP line filter using MOV devices
US4021760A (en) * 1976-01-19 1977-05-03 The United States Of America As Represented By The Secretary Of The Army EMP circuit board filter using MOV devices
US4198613A (en) * 1978-05-17 1980-04-15 Bunker Ramo Corporation Filter contact

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US3711794A (en) * 1971-10-21 1973-01-16 Gen Electric Surge suppression transmission means
US3824431A (en) * 1973-05-10 1974-07-16 Allen Bradley Co High voltage suppressor for transmission lines
US4021759A (en) * 1976-01-19 1977-05-03 The United States Of America As Represented By The Secretary Of The Army EMP line filter using MOV devices
US4021760A (en) * 1976-01-19 1977-05-03 The United States Of America As Represented By The Secretary Of The Army EMP circuit board filter using MOV devices
US4198613A (en) * 1978-05-17 1980-04-15 Bunker Ramo Corporation Filter contact

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2747098A1 (fr) * 2012-12-19 2014-06-25 ABB Research Ltd. Agencement de transformateur pour atténuer les oscillations de tension transitoire
WO2014095206A1 (fr) * 2012-12-19 2014-06-26 Abb Research Ltd Ensemble transformateur destiné à atténuer les oscillations de tension transitoire
KR101591235B1 (ko) 2012-12-19 2016-02-02 에이비비 리써치 리미티드 과도 전압 발진들을 경감시키는 변압기 장치
US9953760B2 (en) 2012-12-19 2018-04-24 Abb Research Ltd. Transformer arrangement for mitigating transient voltage oscillations

Also Published As

Publication number Publication date
CA1271517A (fr) 1990-07-10
EP0187983B1 (fr) 1989-11-29
DE3574533D1 (de) 1990-01-04
JPS61169012A (ja) 1986-07-30
ATE48343T1 (de) 1989-12-15
US4760485A (en) 1988-07-26

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